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9fe9ba5bef
freebsd-dev/sys
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Steven Hartland 9fe9ba5bef Teach GEOM and CAM about the difference between the max "size" of r/w and delete 
requests.

sys/geom/geom_disk.h:
        - Added d_delmaxsize which represents the maximum size of individual
          device delete requests in bytes. This can be used by devices to
          inform geom of their size limitations regarding delete operations
          which are generally different from the read / write limits as data
          is not usually transferred from the host to physical device.

sys/geom/geom_disk.c:
        - Use new d_delmaxsize to calculate the size of chunks passed through to
          the underlying strategy during deletes instead of using read / write
          optimised values. This defaults to d_maxsize if unset (0).

        - Moved d_maxsize default up so it can be used to default d_delmaxsize

sys/cam/ata/ata_da.c:
        - Added d_delmaxsize calculations for TRIM and CFA

sys/cam/scsi/scsi_da.c:
        - Added re-calculation of d_delmaxsize whenever delete_method is set.

        - Added kern.cam.da.X.delete_max sysctl which allows the max size for
          delete requests to be limited. This is useful in preventing timeouts
          on devices who's delete methods are slow. It should be noted that
          this limit is reset then the device delete method is changed and
          that it can only be lowered not increased from the device max.

Reviewed by:	mav
Approved by:	pjd (mentor)
2013-04-26 16:22:54 +00:00
..
amd64 Add RIP-relative addressing to the instruction decoder. 2013-04-25 04:56:43 +00:00
arm Initialize GIC_PMRR register on ARM GIC. 2013-04-22 08:28:53 +00:00
boot When rebooting (exiting) from the BTX loader, make sure to restore the 2013-04-24 17:20:45 +00:00
bsm Implement chflagsat(2) system call, similar to fchmodat(2), but operates on 2013-03-21 22:59:01 +00:00
cam Teach GEOM and CAM about the difference between the max "size" of r/w and delete 2013-04-26 16:22:54 +00:00
cddl Changed ZFS TRIM sysctl from vfs.zfs.trim_disable -> vfs.zfs.trim.enabled 2013-04-26 11:24:20 +00:00
compat Regen. 2013-04-02 05:30:52 +00:00
conf Add usie to LINT. 2013-04-26 13:03:22 +00:00
contrib Merge ACPICA 20130418. 2013-04-19 23:49:34 +00:00
crypto When porting XTS-related code from OpenBSD I forgot to update copyright (only 2013-02-20 22:59:53 +00:00
ddb Small textdump enhancements. 2012-11-01 04:07:08 +00:00
dev Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
fs When an NFS unmount occurs, once vflush() writes the last dirty 2013-04-18 23:20:16 +00:00
gdb
geom Teach GEOM and CAM about the difference between the max "size" of r/w and delete 2013-04-26 16:22:54 +00:00
gnu/fs/reiserfs Garbage collect XFS bits which are now already completely disconnected 2013-03-02 15:33:54 +00:00
i386 Remove redundant definitions of _ALIGN and _ALIGNBYTES. 2013-04-21 11:12:44 +00:00
ia64 Remove ctl(4) from GENERIC. Also remove 'options CTL_DISABLE' 2013-04-12 16:25:03 +00:00
isa
kern Base the calculation of maxmbufmem in part on kmem_map size 2013-04-24 13:54:55 +00:00
kgssapi Piete.Brooks at cl.cam.ac.uk reported via email a crash which was 2012-12-18 00:25:48 +00:00
libkern Attempt to mitigate poor initialization of arc4 by one-shot 2013-04-19 00:30:52 +00:00
mips Octeon 2 (6xxx) and newer CPUs don't use the clock CPU speed for its 2013-04-26 05:42:35 +00:00
modules Build uart_dev_lpc.c on arm only. This fixes pc98 build. 2013-04-22 13:02:41 +00:00
net Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
net80211 Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netatalk Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netgraph Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netinet Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netinet6 Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netipsec Use IP6STAT_INC/IP6STAT_DEC macros to update ip6 stats. 2013-04-09 07:11:22 +00:00
netipx Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netnatm Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
netpfil Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netsmb Call make_dev_credf() rather than using the couple make_dev()/dev_ref(). 2013-03-09 16:58:19 +00:00
nfs Move the NFS FHA (File Handle Affinity) code from sys/nfsserver to 2013-04-17 22:42:43 +00:00
nfsclient When an NFS unmount occurs, once vflush() writes the last dirty 2013-04-18 23:20:16 +00:00
nfsserver Move the NFS FHA (File Handle Affinity) code from sys/nfsserver to 2013-04-17 22:42:43 +00:00
nlm
ofed Check for SS_NBIO in the socket state field rather than socket buffer 2013-04-03 20:31:10 +00:00
opencrypto When porting XTS-related code from OpenBSD I forgot to update copyright (only 2013-02-20 22:59:53 +00:00
pc98 - Correct mispellings of word resource 2013-04-17 11:47:32 +00:00
pci - Corrrect mispellings of word useful 2013-04-17 11:45:15 +00:00
powerpc Remove a comment that shouldn't have gone in. 2013-04-26 05:18:18 +00:00
rpc Fix a potential socket leak in the NFS server. If a client closes its 2013-04-08 19:03:01 +00:00
security Switch the vm_object mutex to be a rwlock. This will enable in the 2013-03-09 02:32:23 +00:00
sparc64 Remove ctl(4) from GENERIC. Also remove 'options CTL_DISABLE' 2013-04-12 16:25:03 +00:00
sys Added Dataset Management defines to be used by TRIM in cam ata and scsi to 2013-04-26 15:46:09 +00:00
teken
tools Further refine the handling of stop signals in the NFS client. The 2013-02-21 19:02:50 +00:00
ufs - Correct mispellings of the word occurrence 2013-04-17 11:40:10 +00:00
vm Panic if UMA_ZONE_PCPU is created at early stages of boot, when mp_ncpus 2013-04-22 09:02:23 +00:00
x86 Introduce kern.timecounter.smp_tsc_adjust tunable (disabled by default) and 2013-04-18 17:07:04 +00:00
xdr Use m_get() and m_getcl() instead of compat macros. 2013-03-15 10:21:18 +00:00
xen
Makefile Remove netncp cscope entry missed in r248097 2013-03-12 14:21:52 +00:00